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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Study on Bactericidal Materials of Quaternary Ammonium Salt Modified Magnetic Nanoparticles
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 2018-2020)
Author(s): Xu-xian Xiao, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Ke-long Huang, School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Qiong-qiong He, School of Basic Medical Science, Central South University，Changsha 410078, People’s Republic of China
Abstract: Bactericidal Materials of Quaternary Ammonium Salt Modified Magnetic Nanoparticles was prepared by coating and modification methods. The characterizations of products were investigated using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Infrared Spectroscopy (IR), Elemental Analysis (EA) and Bactericidal Tests. The results of SEM showed nano-magnetic bactericides were approximately spherical particles with an average diameter of 80 nm. The silica present in the product is amorphous based on the analyses of XRD. The elemental analysis also showed that 4.692% nitrogen was immobilized on the surface of magnetic nanoparticles. Based on IR results, the absorption bands of C-H bond and -NH2 group are observed. These results indicate successful covalent linkage of the organic group to the magnetic substrate. All of the bactericidal rates of the bactericides are more than 90% by bactericidal tests. The bactericidal rate of these bactericides rises with rising of the immobilization rate of nitrogen. So they can be reclaimed through an exterior magnetic field, and they would possess a great development value and broad application prospects.
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